Fingerprint flash drive - spy storage

Like all of the best spy gadgets, this one comes disguised as something innocuous. It looks just like an ordinary - and rather boring - USB stick, and actually, it is a USB stick. Unlike your usual USB, though, the material you store on this one is for your eyes only, as the built-in fingerprint reader means that only you will be able to access it. Or, of course, someone who's cut your finger off and is using it. Maybe I've been watching too much 24...

The device has 512 MB of memory on which to store all of your top secret information, and it's £20.